Highly efficient functional composites based on Al2O3 for combined electromagnetic and mechanical protection
| Autor: | M.V. Zhikharev, A.V. Trukhanov, A. I. Malkin, M.G. Vakhitov, O.A. Kudryavtsev, D.S. Klygach, N.S. Knyazev |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Range (particle radiation) Materials science Process Chemistry and Technology 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Shock (mechanics) law visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites Reflection (physics) visual_art.visual_art_medium Ferrite (magnet) Ceramic Radar Reflection coefficient Composite material 0210 nano-technology Microwave |
| Zdroj: | Ceramics International. 46:17584-17590 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.04.058 |
| Popis: | The paper describes the efficiency of the electromagnetic absorption and mechanical stability of the composites consisting of polyurethane matrix dispersion-armored with corundum grains (Al2O3). Microwave properties and reflection losses were measured in the 1–12 GHz frequency range. This frequency range attracts much attention due to the radar activity. The reflection coefficient was - 35 dB in the whole range. After that, the mechanical properties (ballistic resistance) were determined as a function of the thickness of this composite material. This type of material was found to have the potential to be used as a functional material with additional protective properties. Coexistence of the high-performance electromagnetic protection and well mechanical stability opens up broad perspectives for practical application for combined protection against electromagnetic influences and shock effects. |
| Databáze: | OpenAIRE |
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